| author | Claus Gittinger <cg@exept.de> |
| Wed, 22 Jan 1997 04:19:07 +0100 | |
| changeset 378 | 3924b37b0ea4 |
| parent 301 | 9d63572bb1e2 |
| child 412 | 5fbd63617e33 |
| permissions | -rw-r--r-- |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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Color subclass:#ColorValue |
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instanceVariableNames:'' |
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classVariableNames:'' |
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poolDictionaries:'' |
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category:'Graphics-Support' |
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! |
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!ColorValue class methodsFor:'documentation'! |
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copyright |
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" |
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COPYRIGHT (c) 1995 by Claus Gittinger |
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All Rights Reserved |
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This software is furnished under a license and may be used |
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only in accordance with the terms of that license and with the |
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inclusion of the above copyright notice. This software may not |
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be provided or otherwise made available to, or used by, any |
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other person. No title to or ownership of the software is |
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hereby transferred. |
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" |
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! |
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documentation |
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" |
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ColorValue is provided for ST-80 compatibility. |
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read the section on compatibility issues in the Color class's documentation. |
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[author:] |
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Claus Gittinger |
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! ! |
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!ColorValue class methodsFor:'instance creation'! |
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brightness:grey |
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"return a grey color. |
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The grey value is given in 0..1 instead of percent" |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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^ self scaledGray:(grey * MaxValue) rounded |
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" |
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ColorValue brightness:0.5 |
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" |
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"Modified: 28.5.1996 / 20:53:52 / cg" |
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doesNotUnderstand:aMessage |
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"catch other instance creation messages" |
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|clr| |
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(clr := self name:aMessage selector asString) notNil ifTrue:[ |
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^ clr |
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]. |
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^ super doesNotUnderstand:aMessage |
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" |
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ColorValue royalBlue |
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ColorValue funnyGreen |
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! |
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hue:hue saturation:sat brightness:light |
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"return a color. |
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The hue, saturation and brightness values are given in 0..1 instead of |
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degrees / percent" |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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^ self hue:hue*360 light:light*100 saturation:sat*100 |
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" |
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ColorValue hue:0 saturation:1 brightness:0.5 |
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" |
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! |
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red:r green:g blue:b |
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"return a color from red, green and blue values. |
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The arguments, r, g and b must be in the range (0..1)" |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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^ self |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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scaledRed:(r * MaxValue) rounded |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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scaledGreen:(g * MaxValue) rounded |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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scaledBlue:(b * MaxValue) rounded |
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" |
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ColorValue red:0 green:1 blue:0 |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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ColorValue red:0 green:0.5 blue:0 |
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" |
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300
97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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! ! |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
|
103 |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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!ColorValue methodsFor:'accessing'! |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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blue |
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"return the blue component in 0..1" |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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^ blue / MaxValue |
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! |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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green |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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"return the green component in 0..1" |
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300
97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
|
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^ green / MaxValue |
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97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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! |
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light |
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"return the hue component in 0..1" |
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^ super light / 100.0 |
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Color yellow light |
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ColorValue yellow light |
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"Created: 11.6.1996 / 17:17:39 / cg" |
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! |
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300
97f6b30e8a50
Color changed to use integer r/g/b components internally (0..16rFFFF)
Claus Gittinger <cg@exept.de>
parents:
277
diff
changeset
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red |
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"return the red component in 0..1" |
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^ red / MaxValue |
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! |
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saturation |
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"return the saturation component in 0..1" |
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^ super saturation / 100.0 |
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Color yellow saturation |
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ColorValue yellow saturation |
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" |
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"Created: 11.6.1996 / 17:17:57 / cg" |
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! ! |
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!ColorValue methodsFor:'converting'! |
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fromLiteralArrayEncoding:encoding |
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"read my values from an encoding. |
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The encoding is supposed to be of the form: |
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(#ColorValue scaledRed scaledGreen scaledBlue) |
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This is the reverse operation to #literalArrayEncoding." |
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red := (encoding at:2). |
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green := (encoding at:3). |
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blue := (encoding at:4). |
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" |
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ColorValue new fromLiteralArrayEncoding:#(#Color 7700 7700 7700) |
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" |
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"Created: 22.1.1997 / 04:18:50 / cg" |
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! |
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literalArrayEncoding |
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"encode myself as an array, from which a copy of the receiver |
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can be reconstructed with #decodeAsLiteralArray. |
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The encoding is: |
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(#ColorValue scaledRed scaledGreen scaledBlue) |
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" |
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^ Array |
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with:self class name asSymbol |
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with:(self scaledRed) |
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with:(self scaledGreen) |
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with:(self scaledBlue) |
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" |
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ColorValue new fromLiteralArrayEncoding:#(#Color 50 25 25) |
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(ColorValue red:0.5 green:0.25 blue:1.0) literalArrayEncoding |
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" |
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"Modified: 22.1.1997 / 04:17:59 / cg" |
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! ! |
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!ColorValue class methodsFor:'documentation'! |
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version |
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^ '$Header: /cvs/stx/stx/libview2/ColorValue.st,v 1.13 1997-01-22 03:19:07 cg Exp $' |
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! ! |